# 不单是元素，句子本身也可以作为memory。这就要求能从memory中自发涌现句子或词组。
名词集     = String["苹果"]
动词集     = String["变质"]
be动词集   = String["是"]
定语集     = String["红的", "蓝的"]
标点集     = String["？","。","！"]
记忆       = Vector{抽象语义元素}[[名词("苹果"),be动词("是"),定语("红的")]]
肯定的回答 = ["是","对","没错","嗯"]
否定的回答 = ["否","不对","错","不是"]